ΣCALCULATORWizard 161+ Calculators

Math Calculators

Free online math calculators for algebra, geometry, statistics, and more. Step-by-step solutions for students, educators, and professionals.

22
Math Tools
Free
Always Free
Fast
Instant Results
Core Math
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Scientific Calculator
Full-function scientific calculator with trig, logs, powers, and memory functions.
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Algebra Calculator
Solve linear equations, quadratics, and systems of equations step by step.
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Graphing Calculator
Plot functions, find intersections, and visualize equations on a coordinate plane.
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Percentage Calculator
Calculate percentages, percentage change, and what percent one number is of another.
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Percentage Change Calculator
Find the percent increase or decrease between two values with step-by-step work.
Square Root Calculator
Calculate square roots, cube roots, and nth roots with full decimal precision.
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Exponent Calculator
Raise any base to any power — positive, negative, or fractional exponents.
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Ratio Calculator
Simplify ratios, find equivalent ratios, and solve proportion problems.
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Random Number Generator
Generate random numbers within any range — integers, decimals, or unique sets.
Fractions & Conversions
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Fraction Calculator
Add, subtract, multiply, and divide fractions with automatically simplified results.
Simplify Fractions Calculator
Reduce any fraction to its simplest form with full step-by-step work shown.
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Roman Numeral Converter
Convert between Roman numerals and standard numbers in both directions instantly.
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Speed Distance Time Calculator
Solve for speed, distance, or time given any two values. Works in any units.
Geometry
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Triangle Calculator
Solve any triangle — find missing sides, angles, area, and perimeter from any inputs.
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Pythagorean Theorem CalculatorNew
Find the hypotenuse or any missing side of a right triangle using a² + b² = c².
Logarithms & Advanced Math
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Log CalculatorNew
Calculate logarithms for any base — log₁₀, natural log, log₂, and custom bases.
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Significant Figures CalculatorNew
Count sig figs, round to significant figures, and apply arithmetic sig fig rules.
Statistics
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Standard Deviation Calculator
Calculate mean, variance, and standard deviation for any data set instantly.
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P-value CalculatorNew
Calculate p-values for z-tests, t-tests, and chi-square hypothesis tests.
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Confidence Interval CalculatorNew
Calculate confidence intervals for means and proportions. Includes sample size calculator.
Grades & Academic
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GPA Calculator
Calculate your GPA from grades and credit hours for any semester or cumulative total.
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Grade Calculator
Find the grade you need on a final exam to hit your target course grade.